近來,微藻作為第三代生物燃料的原料在能源研究領(lǐng)域引起了極大的關(guān)注。因為微藻具有的獨特優(yōu)勢,使其與第一代原料有著很大的區(qū)別,例如較高的光合效率、生長速率、生物量生產(chǎn)力以及在廢液或海水中的生長能力。然而,與傳統(tǒng)燃料市場相比,微藻生物燃料的商業(yè)可行性是需要克服的主要挑戰(zhàn)。本研究項目的重點是生物質(zhì)熱解和脂質(zhì)酯交換反應以及對一些有潛力的微藻進行生物柴油制備的評估,其中包括Micractinium reisseri,Scenedesmus obliquus SAG276-10和Scenedesmus obliquus FACHB-276。本研究利用固定床反應器對生物質(zhì)進行熱解,然后使用熱重分析儀,氣相色譜/質(zhì)譜（GC/MS）分析和傅立葉變換紅外（FTIR）光譜分析,將脂質(zhì)轉(zhuǎn)化為脂肪酸甲酯（FAME）。在第一部分中,該研究比較了在不同操作條件下使用固定床反應器不同微藻的生物油生產(chǎn)率,以獲得高產(chǎn)率的粗生物油。在不同溫度（450℃,500℃,550℃和600℃）和不同保留時間（15分鐘,30分鐘,45分鐘和60分鐘）下進行熱解實驗。此外,研究了熱裂解,產(chǎn)物質(zhì)量和催化裂解。然后對最有生產(chǎn)力的藻種使用催化劑... 

【文章來源】：江蘇大學江蘇省

【文章頁數(shù)】：111 頁

【學位級別】：碩士

【文章目錄】：
ACKNOWLEDGEMENT
ABSTRACT
摘要
CHAPTER:1 INTRODUCTION
    1.1 Background of the Study and Statement of the Problem
    1.2 Objectives of the Study
    1.3 Scientific Novelty of the Study
    1.4 Organization of the Dissertation
CHAPTER:2 LITERATURE REVIEW
    2.1 Overview of microalgae
    2.2 Microalgae cultivation systems
        2.2.1 Open raceway ponds
        2.2.2 Closed photobioreactors
        2.2.3 Hybrid cultivation systems
    2.3 Microalgae for biofuels
        2.3.1 Biodiesel production by transesterification
        2.3.2 Bio-oil production via thermochemical conversion
    2.4 Energy efficiency and economy
CHAPTER:3 ADJUSTING THE REACTOR CONDITIONS FOR ENHANCED BIO-OIL PRODUCTION
    3.1 Introduction statement
    3.2 Experimental procedure
        3.2.1 Materials and catalyst
        3.2.2 Experimental apparatus and procedure
    3.3 Pyrolysis behavior of biomass
        3.3.1 Thermogravimetric analysis
    3.4 Analysis of the pyrolysis products
        3.4.1 GC/MS analysis of bio-oil
        3.4.2 FTIR analysis of bio-oil
    3.5 Results and discussion
        3.5.1 Growth pattern and biomass characterization
        3.5.2 Thermal decomposition characteristics of microalgae
        3.5.3 Effect of temperature and retention time on bio-oil yield
        3.5.4 Effect of catalyst-to-algae ratio on bio-oil yield
        3.5.5 Effect of temperature and catalyst on bio-oil composition
        3.5.6 FTIR results
    3.6 Conclusion
CHAPTER:4 EVALUATION OF GROWTH AND BIO-OIL PRODUCTION AT ELEVEATED CO_2 CONCENTRATIONS
    4.1 Introduction statement
    4.2 Materials and methods
        4.2.1 Algae strain and growth conditions
        4.2.2 Biomass assay
        4.2.3 Biomass characterization and pyrolysis
    4.3 Results and discussion
        4.3.1 Growth pattern
        4.3.2 Biomass characterization and pyrolysis results
    4.4 Conclusion
CHAPTER:5 MICROALGAE HARVEST INFLUENCES THE ENERGY RECOVERY:A CASE STUDY ON CHEMICAL FLOCCULATION OFSCENEDESMUS OBLIQUUS FOR BIODIESEL AND CRUDE BIO-OIL PRODUCTION
    5.1 Introduction statement
    5.2 Materials and methods
        5.2.1 Microalga and growth conditions
        5.2.2 Growth measurement
        5.2.3 Harvest and biomass characterization
        5.2.4 Lipid extraction and biodiesel analysis
            5.2.4.1 Lipid estimation
            5.2.4.2 FAMEs analysis
        5.2.5 Pyrolysis and bio-oil analysis
        5.2.6 Statistical analysis
    5.3 Results and discussion
        5.3.1 Growth curve and biomass characterization
        5.3.2 Lipid recovery and FAMEs profile
        5.3.3 Thermal decomposition and crude bio-oil production
            5.3.3.1 Thermal decomposition
            5.3.3.2 Crude bio-oil production
            5.3.3.3 Composition of the crude bio-oil
    5.4.Economic feasibility
    5.5 Conclusions
GENERAL CONCLUSIONS AND FUTURE WORK SUGGESTIONS
REFERENCES
APPENDICESA
APPENDICESB



本文編號：3265854